A cube of ice is taken from the freezer at -6.5 °C and placed in a 85-g aluminum calorimeter filled with 320 g of water at room temperature of 20.0 °C. The finalsituation is observed to be all water at 15.0 °C. The specific heat of ice is 2100 J/kg . C°, the specific heat of aluminum is 900 J/kg . C°, the specific heat of wateris is 4186 J/kg. C°, the heat of fusion of water is 333 kJ/Kg.Part AWhat was the mass of the ice cube?Express your answer to two significant figures and inm =for Part A for Part A do for Part redo foValueUnits In this problem you will consider the balance of thermal energy radiated and absorbed by a person.Assume that the person is wearing only a skimpy bathing suit of negligible area. As a rough approximation, the area of a human body may be considered to be that ofthe sides of a cylinder of length L = 2.0 m and circumference C = 0.8 m.For the Stefan-Boltzmann constant use o = 5.67 × 10−8 W/m²/Kª.Part AIf the surface temperature of the skin is taken to be Thody = 30°C, how much thermal power Prь does the body described in the introduction radiate?Take the emissivity to be e = 0.6.Express the power radiated into the room by the body numerically, rounded to the nearest 10 W.► View Available Hint(s)Prb =Submitfor Part A for Part A do for Part redo fo Part A resefor Part A keyboard shortcuts for Part A help for Part APart B Complete previous part(s)Part C Complete previous part(s)Part DFind Pnet, the net power radiated by the person when in a room with temperature Troom = 20°C.Express the net radiated power numerically, to the nearest 10 W.► View Available Hint(s)W

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A cube of ice is taken from the freezer at -6.5 °C and placed in a 85-g aluminum calorimeter filled with 320 g of water room temperature of 20.0 °C. The final situation is observed to be all water at 15.0 °C. The specific heat of ice is 2100 J/kg. C°, the specific heat of aluminum is 900 J/kg. C°, the specific heat of water is is 4186 J/kg. C°, the heat fusion of water is 333 kJ/Kg. Part A What was the mass of the ice cube? Express your answer to two significant figures and in m = for Part A for Party do for Part redo fo Value Units

A cube of ice is taken from the freezer at -6.5 °C and placed in a 85-g aluminum calorimeter filled with 320 g of water room temperature of 20.0 °C. The final situation is observed to be all water at 15.0 °C. The specific heat of ice is 2100 J/kg. C°, the specific heat of aluminum is 900 J/kg. C°, the specific heat of water is is 4186 J/kg. C°, the heat fusion of water is 333 kJ/Kg. Part A What was the mass of the ice cube? Express your answer to two significant figures and in m = for Part A for Party do for Part redo fo Value Units

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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FOLLOWING CONSTANTS ARE GIVEN FOR CALCULATIONS. Specific Heat of Water = 4186 J/kg °C, Specific Heat of Iron = 452 J /kg °C, Specific Heat of Ice = 2093 J/kg °C, Specific Heat of Lead = 130 J/kg °C Latent Heat of Fusion = 3.34 x 105 J/kg, Specific Heat of Copper = 385.1J /kg.'C Density of iron = 7.874 g /cm3 Density of copper = 8.95 g /cm3 3. 5 kg of ice at 0 °C is mixed with 1.5 kg of steam at 100 °C. Calculate the final temperature of the mixture.
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